Improvement in railroad-chairs



B. MGDONALD. RAILROAD CHAIR.

No. 42,098. Patented Mar. 29, 1864,

% 7 w l v @Jrwenfor a? wmy v UNITED STATES- PATENT OFFICE.

- GREEN B. MCDONALD, OF LOUISVILLE, KENTUCKY.

IMPROVEMENT IN RAILROAD-CHAIRS.

Specification forming part of Letters Patent No. 42,098, dated March29,1864; 1

To all whom it may concern.-

Be it known that I, GREEN B. MCDONALD, of Louisville, in the county ofJefferson and Statesof Kentucky, have invented a new and Improved Chairfor Railroadltails; and I do hereby declare that the following is afull, clear, and eitactdcscription of the same, reference being had totheaccompanying draw ings, making-a partof this specification, in whichFigure 1 is a transverse vertical section of my invention, taken in theline a: m, Fig. 2; Fig. 2, a plan or top view of the same.

Similar, letters of reference indicate corresponding parts in the twofigures.

This invention consists in constructing the two rails of differentsizes.

To enable thoseskilled in the art to fully understand and construct'myinvention, I will proceed to describe it.

A' represents the base-plate .of the chair,- which is of flat form,presenting ,a'plain sur--.

face both; at top and bottom, and of equal thickness throughout. Fromone side of this base-plate a flange, B, depends, having holes a in itto adinit of the shanks b of hooks O passing through, (seTeFig. 1,) andat the same side of the base-plate, at its upper edge, there is a lip,'D, so curved as tofit over on'e'side of the. edge of the base of theraiis,'="as also shown in Fig. l, the rails being shown in red.

The lip Dext'euds the whole length 'ofYthe base-plate, as shown in Fig.2. The hooks O (J'fit over the base of the rails at the sides op positeto those over which the Lip D is fitted. The shanks b of these books,-whi'ch pass through the holes a of the flange B, have screw-threads 'onthem to receiye nut-s E} by screwing up which the hooks Gare drawnsnugly over the basesof the rails. The hooks C 0 pass into notches c cin-the side ojf 'the base-plate. By this'arrangement-it will be seenthat the chair is adapted torails'qf different patterns and size, andthat the ends of two rails difi'ering insize may beifirznly secured init, as the adjustment of one book is entirely, independent of theadjustment-of the The books are of wrought-iron. [The baseplate maybeeitherof cast or wrought iron. Having thus described my invent-iomwhatlclaim as new, and desire to secu're by Letters Patent, is-- Thebase-plate A, provided with the pendent flangeB and the lip l), incombination with two ormorehooks, U 0, all arranged substantially as andfor the purpose set forth.

G. B. MCDONALD. Witnesses:

J. O. COLEMAN, JOHN B. DAVIES.

